Telling Time - Half Hour

Minutes

A Digital Clock Would Show:

The time can be written as:

Some ways to say 30 minutes after an hour
Four thirty o'clock
Four thirty
Half past four
Thirty past four

How to find the difference between two times
Subtract the minutes of the earlier time from the minutes of the later time.
If the minutes of the earlier time are more than the minutes of the later time,
subtract 1 from the hour of the later time and add 60 to the minutes of the later
time. After you have found the difference in the minutes, subtract the hour of
the first time from the hour of the second time.